Re: Unable to run basic WordCount example program from flink tutorial

Posted by r_khachatryan on
URL: http://deprecated-apache-flink-user-mailing-list-archive.369.s1.nabble.com/Unable-to-run-basic-WordCount-example-program-from-flink-tutorial-tp35684p35686.html

Dear Tom,

This is likely a scala version issue.

Can you post your pom.xml?

On Tue, Jun 2, 2020 at 6:34 PM Tom Burgert <[hidden email]> wrote:

Dear all, 

I am trying to set up flink and after hours I still fail to make a simple program run even though I follow every recommended step in the tutorials.

My operating system is OSX (therefore everything was installed via brew) and I am using Maven as a build tool. I used the quick start script for scala to set up a new project.

Then, I only did two things:

1) paced the code from word count object to the BatchJob.scala file (https://ci.apache.org/projects/flink/flink-docs-release-1.10/dev/batch/)

2) alternated the MainClass in the pom.xml file from StreamJob to BatchJob

Then, I build via "mvn clean package" and run the .jar. file.

When compiling, I receive the following warning: 

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Expected all dependencies to require Scala version: 2.11.12

 org.scala-lang:scala-reflect:2.11.12 requires scala version: 2.11.12

 org.apache.flink:flink-scala_2.11:1.10.0 requires scala version: 2.11.12

 org.apache.flink:flink-scala_2.11:1.10.0 requires scala version: 2.11.12

 org.scala-lang:scala-compiler:2.11.12 requires scala version: 2.11.12

 org.scala-lang.modules:scala-xml_2.11:1.0.5 requires scala version: 2.11.7

Multiple versions of scala libraries detected!

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Which is weird, since the pom.xml file should keep all versions the same (at least the structures seems like it) and by playing around with the pom.xml file I could not prevent this warning. Either way, I could not find any information on the internet if the warning might be the reason for the error I am getting when running the jar file.

The error I get when I run my .jar file is the following:

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 The program finished with the following exception:

org.apache.flink.client.program.ProgramInvocationException: The main method caused an error: org.apache.flink.client.program.ProgramInvocationException: Job failed (JobID: 32d249e2b67ef0ecbc72bd164fe1dfb9)

at org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:335)

at org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:205)

at org.apache.flink.client.ClientUtils.executeProgram(ClientUtils.java:138)

at org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:662)

at org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:210)

at org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:893)

at org.apache.flink.client.cli.CliFrontend.lambda$main$10(CliFrontend.java:966)

at org.apache.flink.runtime.security.NoOpSecurityContext.runSecured(NoOpSecurityContext.java:30)

at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:966)

Caused by: java.util.concurrent.ExecutionException: org.apache.flink.client.program.ProgramInvocationException: Job failed (JobID: 32d249e2b67ef0ecbc72bd164fe1dfb9)

at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357)

at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1895)

at org.apache.flink.client.program.ContextEnvironment.execute(ContextEnvironment.java:73)

at org.apache.flink.api.java.ExecutionEnvironment.execute(ExecutionEnvironment.java:844)

at org.apache.flink.api.java.DataSet.collect(DataSet.java:413)

at org.apache.flink.api.java.DataSet.print(DataSet.java:1652)

at org.apache.flink.api.scala.DataSet.print(DataSet.scala:1864)

at org.myorg.quickstart.BatchJob$.main(BatchJob.scala:19)

at org.myorg.quickstart.BatchJob.main(BatchJob.scala)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:498)

at org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:321)

... 8 more

Caused by: org.apache.flink.client.program.ProgramInvocationException: Job failed (JobID: 32d249e2b67ef0ecbc72bd164fe1dfb9)

at org.apache.flink.client.deployment.ClusterClientJobClientAdapter.lambda$null$6(ClusterClientJobClientAdapter.java:112)

at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:602)

at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)

at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)

at java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:1962)

at org.apache.flink.client.program.rest.RestClusterClient.lambda$pollResourceAsync$21(RestClusterClient.java:565)

at java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:760)

at java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:736)

at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)

at java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:1962)

at org.apache.flink.runtime.concurrent.FutureUtils.lambda$retryOperationWithDelay$8(FutureUtils.java:291)

at java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:760)

at java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:736)

at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)

at java.util.concurrent.CompletableFuture.postFire(CompletableFuture.java:561)

at java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:929)

at java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:442)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

at java.lang.Thread.run(Thread.java:745)

Caused by: org.apache.flink.runtime.client.JobExecutionException: Job execution failed.

at org.apache.flink.runtime.jobmaster.JobResult.toJobExecutionResult(JobResult.java:147)

at org.apache.flink.client.deployment.ClusterClientJobClientAdapter.lambda$null$6(ClusterClientJobClientAdapter.java:110)

... 19 more

Caused by: org.apache.flink.runtime.JobException: Recovery is suppressed by NoRestartBackoffTimeStrategy

at org.apache.flink.runtime.executiongraph.failover.flip1.ExecutionFailureHandler.handleFailure(ExecutionFailureHandler.java:110)

at org.apache.flink.runtime.executiongraph.failover.flip1.ExecutionFailureHandler.getFailureHandlingResult(ExecutionFailureHandler.java:76)

at org.apache.flink.runtime.scheduler.DefaultScheduler.handleTaskFailure(DefaultScheduler.java:192)

at org.apache.flink.runtime.scheduler.DefaultScheduler.maybeHandleTaskFailure(DefaultScheduler.java:186)

at org.apache.flink.runtime.scheduler.DefaultScheduler.updateTaskExecutionStateInternal(DefaultScheduler.java:180)

at org.apache.flink.runtime.scheduler.SchedulerBase.updateTaskExecutionState(SchedulerBase.java:496)

at org.apache.flink.runtime.jobmaster.JobMaster.updateTaskExecutionState(JobMaster.java:380)

at sun.reflect.GeneratedMethodAccessor47.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:498)

at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcInvocation(AkkaRpcActor.java:284)

at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:199)

at org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.handleRpcMessage(FencedAkkaRpcActor.java:74)

at org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleMessage(AkkaRpcActor.java:152)

at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:26)

at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:21)

at scala.PartialFunction.applyOrElse(PartialFunction.scala:123)

at scala.PartialFunction.applyOrElse$(PartialFunction.scala:122)

at akka.japi.pf.UnitCaseStatement.applyOrElse(CaseStatements.scala:21)

at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171)

at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:172)

at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:172)

at akka.actor.Actor.aroundReceive(Actor.scala:517)

at akka.actor.Actor.aroundReceive$(Actor.scala:515)

at akka.actor.AbstractActor.aroundReceive(AbstractActor.scala:225)

at akka.actor.ActorCell.receiveMessage(ActorCell.scala:592)

at akka.actor.ActorCell.invoke(ActorCell.scala:561)

at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:258)

at akka.dispatch.Mailbox.run(Mailbox.scala:225)

at akka.dispatch.Mailbox.exec(Mailbox.scala:235)

at akka.dispatch.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)

at akka.dispatch.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)

at akka.dispatch.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)

at akka.dispatch.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)

Caused by: java.lang.NoSuchMethodError: scala.Predef$.refArrayOps([Ljava/lang/Object;)Lscala/collection/mutable/ArrayOps;

at org.myorg.quickstart.BatchJob$$anonfun$1.apply(BatchJob.scala:14)

at org.myorg.quickstart.BatchJob$$anonfun$1.apply(BatchJob.scala:14)

at org.apache.flink.api.scala.DataSet$$anon$5.flatMap(DataSet.scala:609)

at org.apache.flink.runtime.operators.chaining.ChainedFlatMapDriver.collect(ChainedFlatMapDriver.java:80)

at org.apache.flink.runtime.operators.util.metrics.CountingCollector.collect(CountingCollector.java:35)

at org.apache.flink.runtime.operators.DataSourceTask.invoke(DataSourceTask.java:196)

at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:708)

at org.apache.flink.runtime.taskmanager.Task.run(Task.java:533)

at java.lang.Thread.run(Thread.java:745)

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I would be very glad, if some can help me out with this issue.

Best,

Tom